boards/imx93-evk: kernel build for AHAB boot

Add kernel build (target imx93-evk:knsh) to i.MX93 EVK.
This target is preconfigured for use with AHAB boot (see
https://spsdk.readthedocs.io/en/latest/examples/ahab/imx93/imx93_ahab_uboot.html)
as a replacement of U-Boot proper (BL33 at EL2), hence
the load address is set to 0x80200000.

Signed-off-by: George Poulios <gpoulios@census-labs.com>
This commit is contained in:
George Poulios
2025-05-01 22:53:18 +03:00
committed by Xiang Xiao
parent 464c0831ce
commit 7ea8b59a59
9 changed files with 579 additions and 0 deletions
@@ -85,6 +85,7 @@ You have four options:
2 - Load via gdb
3 - Load via JLink
4 - Run from SD-card, without u-boot
5 - Kernel build, via AHAB boot
==========================================
@@ -167,3 +168,37 @@ Option 4: Run from SD-card, without u-boot
3. Insert the SD-card into the imx93-evk, make sure BMODE switch is [1,2,3,4] = [Off, On, Off, Off] so that it boots from the SD-card.
This should boot into NuttShell in EL3 level.
==========================================
Option 5: Kernel build, via AHAB boot
==========================================
1. Follow the instructions at: https://spsdk.readthedocs.io/en/latest/examples/ahab/imx93/imx93_ahab_uboot.html
to create an eMMC-bootable image (latest version of instructions tested is v2.6.1). We will be replacing the u-boot binary in step 2.3 with NuttX.
2. Clone both NuttX and NuttX-Apps in same level directories `nuttx` and `apps` respectively.
3. Configure and build NuttX:
cd nuttx
tools/configure.sh imx93-evk:knsh
make
make export
4. Build NuttX apps and prepare the /bin ROMFS image:
pushd ../apps
tools/mkimport.sh -z -x ../nuttx/nuttx-export-*.tar.gz
make import
tools/mkromfsimg.sh
mv boot_romfsimg.h ../nuttx/boards/arm64/imx9/imx93-evk/include/bin_romfsimg.h
popd
5. Re-build NuttX embedding the generated /bin ROMFS image:
make clean clean_context
make
6. Replace the value of the `u-boot:` entry in workspace/ahab_template.yaml created in step 1 above with the path to nuttx.bin.
+8
View File
@@ -27,6 +27,14 @@ endchoice # i.MX9 Chip Selection
endmenu # "i.MX9 Chip Selection"
config IMX9_BIN_ROMFS
bool "Register the /bin ROMFS file system at /dev/ram0"
depends on FS_ROMFS
default n
---help---
Register a ROMFS image at /dev/ram0 for use with CONFIG_INIT_MOUNT*.
The image must be placed into <arch/board/bin_romfsimg.h>.
config IMX9_DMA_ALLOC
bool "Enable DMA capable memory allocator"
depends on GRAN
@@ -0,0 +1,174 @@
#
# This file is autogenerated: PLEASE DO NOT EDIT IT.
#
# You can use "make menuconfig" to make any modifications to the installed .config file.
# You can then do "make savedefconfig" to generate a new defconfig file that includes your
# modifications.
#
# CONFIG_MMCSD_HAVE_WRITEPROTECT is not set
# CONFIG_MMCSD_IOCSUPPORT is not set
# CONFIG_MMCSD_MMCSUPPORT is not set
CONFIG_ARCH="arm64"
CONFIG_ARCH_ADDRENV=y
CONFIG_ARCH_ARM64=y
CONFIG_ARCH_BOARD="imx93-evk"
CONFIG_ARCH_BOARD_IMX93_EVK=y
CONFIG_ARCH_CHIP="imx9"
CONFIG_ARCH_CHIP_IMX93=y
CONFIG_ARCH_CHIP_IMX9=y
CONFIG_ARCH_DATA_NPAGES=0
CONFIG_ARCH_DATA_VBASE=0xC0000000
CONFIG_ARCH_EARLY_PRINT=y
CONFIG_ARCH_HEAP_NPAGES=0
CONFIG_ARCH_HEAP_VBASE=0x00000000
CONFIG_ARCH_INTERRUPTSTACK=4096
CONFIG_ARCH_KERNEL_STACKSIZE=8192
CONFIG_ARCH_KMAP_NPAGES=4096
CONFIG_ARCH_KMAP_VBASE=0xBF000000
CONFIG_ARCH_PGPOOL_MAPPING=y
CONFIG_ARCH_PGPOOL_PBASE=0x82000000
CONFIG_ARCH_PGPOOL_SIZE=94371840
CONFIG_ARCH_PGPOOL_VBASE=0x82000000
CONFIG_ARCH_TEXT_NPAGES=0
CONFIG_ARCH_TEXT_VBASE=0x00000000
CONFIG_ARCH_USE_MMU=y
CONFIG_ARM64_STRING_FUNCTION=y
CONFIG_BCH_BUFFER_ALIGNMENT=64
CONFIG_BOARD_LATE_INITIALIZE=y
CONFIG_BOARD_LOOPSPERMSEC=241712
CONFIG_BUILD_KERNEL=y
CONFIG_CDCACM=y
CONFIG_DEBUG_ASSERTIONS=y
CONFIG_DEBUG_FEATURES=y
CONFIG_DEBUG_FULLOPT=y
CONFIG_DEBUG_SYMBOLS=y
CONFIG_DEFAULT_TASK_STACKSIZE=32384
CONFIG_DISABLE_MQUEUE=y
CONFIG_DRIVERS_NOTE=y
CONFIG_ELF=y
CONFIG_ELF_STACKSIZE=4096
CONFIG_ETH0_PHY_MULTI=y
CONFIG_EXAMPLES_HELLO=y
CONFIG_EXAMPLES_TCPBLASTER=y
CONFIG_EXAMPLES_UDPBLASTER=y
CONFIG_EXPERIMENTAL=y
CONFIG_FAT_DMAMEMORY=y
CONFIG_FS_FAT=y
CONFIG_FS_FATTIME=y
CONFIG_FS_PROCFS=y
CONFIG_FS_ROMFS=y
CONFIG_GPT_PARTITION=y
CONFIG_HAVE_CXX=y
CONFIG_HAVE_CXXINITIALIZE=y
CONFIG_I2C=y
CONFIG_I2C_RESET=y
CONFIG_IDLETHREAD_STACKSIZE=8192
CONFIG_IMX9_BIN_ROMFS=y
CONFIG_IMX9_DMA_ALLOC=y
CONFIG_IMX9_DMA_ALLOC_POOL_SIZE=81920
CONFIG_IMX9_EDMA=y
CONFIG_IMX9_ENET1_RGMII=y
CONFIG_IMX9_ENET=y
CONFIG_IMX9_ENET_USE_OTP_MAC=y
CONFIG_IMX9_FLEXIO1_PWM=y
CONFIG_IMX9_GPIO_IRQ=y
CONFIG_IMX9_LPI2C1=y
CONFIG_IMX9_LPI2C1_DMA=y
CONFIG_IMX9_LPI2C_DMA=y
CONFIG_IMX9_LPI2C_DYNTIMEO=y
CONFIG_IMX9_LPI2C_DYNTIMEO_STARTSTOP=10
CONFIG_IMX9_LPSPI6=y
CONFIG_IMX9_LPSPI6_DMA=y
CONFIG_IMX9_LPSPI_DMA=y
CONFIG_IMX9_LPUART1=y
CONFIG_IMX9_TPM3_PWM=y
CONFIG_IMX9_TPM3_PWM_CHMUX=0x00000003
CONFIG_IMX9_USBDEV_USBC1=y
CONFIG_IMX9_USDHC2=y
CONFIG_IMX9_USDHC2_INVERT_CD=y
CONFIG_INIT_MOUNT=y
CONFIG_INTELHEX_BINARY=y
CONFIG_LIBC_ENVPATH=y
CONFIG_LIBC_EXECFUNCS=y
CONFIG_LIBC_MAX_EXITFUNS=16
CONFIG_LIBC_STRERROR=y
CONFIG_LIBC_USRWORK=y
CONFIG_LIBC_USRWORKSTACKSIZE=4096
CONFIG_LPUART1_SERIAL_CONSOLE=y
CONFIG_MMCSD=y
CONFIG_MMCSD_SDIO=y
CONFIG_MM_KMAP=y
CONFIG_MM_PGALLOC=y
CONFIG_NAME_MAX=64
CONFIG_NDEBUG=y
CONFIG_NET=y
CONFIG_NETDB_DNSCLIENT=y
CONFIG_NETDEV_IFINDEX=y
CONFIG_NETDEV_PHY_IOCTL=y
CONFIG_NETDEV_WORK_THREAD=y
CONFIG_NETDEV_WORK_THREAD_PRIORITY=180
CONFIG_NET_ARP_IPIN=y
CONFIG_NET_BROADCAST=y
CONFIG_NET_ETH_PKTSIZE=1478
CONFIG_NET_ICMP_SOCKET=y
CONFIG_NET_LOCAL=y
CONFIG_NET_TCP=y
CONFIG_NET_TCP_DELAYED_ACK=y
CONFIG_NET_TCP_NOTIFIER=y
CONFIG_NET_TIMESTAMP=y
CONFIG_NET_UDP=y
CONFIG_NET_UDP_CHECKSUMS=y
CONFIG_NET_UDP_NOTIFIER=y
CONFIG_NSH_ARCHINIT=y
CONFIG_NSH_DISABLE_DMESG=y
CONFIG_NSH_DISABLE_EXIT=y
CONFIG_NSH_FILEIOSIZE=512
CONFIG_NSH_FILE_APPS=y
CONFIG_NSH_PROMPT_STRING="knsh> "
CONFIG_NSH_READLINE=y
CONFIG_NSH_STRERROR=y
CONFIG_NSH_VARS=y
CONFIG_PATH_INITIAL="/bin"
CONFIG_PRIORITY_INHERITANCE=y
CONFIG_PSEUDOFS_SOFTLINKS=y
CONFIG_PTHREAD_STACK_MIN=1024
CONFIG_PWM=y
CONFIG_PWM_NCHANNELS=4
CONFIG_RAMLOG=y
CONFIG_RAM_SIZE=31457280
CONFIG_RAM_START=0x80200000
CONFIG_RAM_VSTART=0x80200000
CONFIG_RAW_BINARY=y
CONFIG_READLINE_CMD_HISTORY=y
CONFIG_READLINE_TABCOMPLETION=y
CONFIG_RR_INTERVAL=200
CONFIG_SCHED_CHILD_STATUS=y
CONFIG_SCHED_HAVE_PARENT=y
CONFIG_SCHED_HPWORK=y
CONFIG_SCHED_INSTRUMENTATION=y
CONFIG_SCHED_INSTRUMENTATION_SWITCH=y
CONFIG_SCHED_LPNTHREADS=2
CONFIG_SCHED_LPWORK=y
CONFIG_SCHED_LPWORKPRIORITY=50
CONFIG_SCHED_LPWORKSTACKSIZE=4096
CONFIG_SCHED_WAITPID=y
CONFIG_SDIO_BLOCKSETUP=y
CONFIG_SEM_PREALLOCHOLDERS=32
CONFIG_SERIAL_NPOLLWAITERS=2
CONFIG_SERIAL_TERMIOS=y
CONFIG_SIG_DEFAULT=y
CONFIG_SIG_SIGALRM_ACTION=y
CONFIG_SIG_SIGUSR1_ACTION=y
CONFIG_SIG_SIGUSR2_ACTION=y
CONFIG_STACK_COLORATION=y
CONFIG_START_MONTH=3
CONFIG_START_YEAR=2022
CONFIG_SYMTAB_ORDEREDBYNAME=y
CONFIG_SYSTEM_CDCACM=y
CONFIG_SYSTEM_I2CTOOL=y
CONFIG_SYSTEM_NSH=y
CONFIG_SYSTEM_NSH_PROGNAME="init"
CONFIG_SYSTEM_PING=y
CONFIG_SYSTEM_TIME64=y
CONFIG_TASK_NAME_SIZE=24
CONFIG_TLS_LOG2_MAXSTACK=15
@@ -0,0 +1 @@
/*_romfsimg.h
@@ -0,0 +1,42 @@
/****************************************************************************
* boards/arm64/imx9/imx93-evk/include/bin_romfsimg.h
*
* SPDX-License-Identifier: Apache-2.0
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership. The
* ASF licenses this file to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance with the
* License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*
****************************************************************************/
#ifndef __BOARDS_ARM64_IMX9_IMX93_EVK_INCLUDE_BIN_ROMFSIMG_H
#define __BOARDS_ARM64_IMX9_IMX93_EVK_INCLUDE_BIN_ROMFSIMG_H
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/compiler.h>
/****************************************************************************
* Public data
****************************************************************************/
const unsigned char aligned_data(4) romfs_img[] =
{
0x00
};
unsigned int romfs_img_len = 1;
#endif /* __BOARDS_ARM64_IMX9_IMX93_EVK_INCLUDE_BIN_ROMFSIMG_H */
@@ -27,6 +27,8 @@ include $(TOPDIR)/arch/arm64/src/Toolchain.defs
ifeq ($(CONFIG_IMX9_BOOTLOADER),y)
LDSCRIPT = ocramboot.ld
else ifeq ($(CONFIG_BUILD_KERNEL),y)
LDSCRIPT = kernel.ld
else
LDSCRIPT = dramboot.ld
endif
@@ -0,0 +1,131 @@
/****************************************************************************
* boards/arm64/imx9/imx93-evk/scripts/gnu-elf.ld
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership. The
* ASF licenses this file to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance with the
* License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*
****************************************************************************/
SECTIONS
{
.text :
{
_stext = . ;
*(.text)
*(.text.*)
*(.gnu.warning)
*(.stub)
*(.glue_7)
*(.glue_7t)
*(.jcr)
/* C++ support: The .init and .fini sections contain specific logic
* to manage static constructors and destructors.
*/
*(.gnu.linkonce.t.*)
*(.init) /* Old ABI */
*(.fini) /* Old ABI */
_etext = . ;
}
.rodata :
{
_srodata = . ;
*(.rodata)
*(.rodata1)
*(.rodata.*)
*(.gnu.linkonce.r*)
_erodata = . ;
}
.data :
{
_sdata = . ;
*(.data)
*(.data1)
*(.data.*)
*(.gnu.linkonce.d*)
. = ALIGN(4);
_edata = . ;
}
/* C++ support. For each global and static local C++ object,
* GCC creates a small subroutine to construct the object. Pointers
* to these routines (not the routines themselves) are stored as
* simple, linear arrays in the .ctors section of the object file.
* Similarly, pointers to global/static destructor routines are
* stored in .dtors.
*/
.ctors :
{
_sctors = . ;
KEEP(*(SORT_BY_INIT_PRIORITY(.init_array.*) SORT_BY_INIT_PRIORITY(.ctors.*)))
KEEP(*(.init_array .ctors))
_ectors = . ;
}
.dtors :
{
_sdtors = . ;
KEEP (*(.dtors)) /* Old ABI: Unallocated */
KEEP (*(.fini_array)) /* New ABI: Allocated */
KEEP (*(SORT(.fini_array.*)))
_edtors = . ;
}
.bss :
{
_sbss = . ;
*(.bss)
*(.bss.*)
*(.sbss)
*(.sbss.*)
*(.gnu.linkonce.b*)
*(COMMON)
_ebss = . ;
}
/* Thread local storage support */
.tdata :
{
_stdata = ABSOLUTE(.);
KEEP (*(.tdata .tdata.* .gnu.linkonce.td.*));
_etdata = ABSOLUTE(.);
}
.tbss :
{
_stbss = ABSOLUTE(.);
KEEP (*(.tbss .tbss.* .gnu.linkonce.tb.* .tcommon));
_etbss = ABSOLUTE(.);
}
/* Stabs debugging sections. */
.stab 0 : { *(.stab) }
.stabstr 0 : { *(.stabstr) }
.stab.excl 0 : { *(.stab.excl) }
.stab.exclstr 0 : { *(.stab.exclstr) }
.stab.index 0 : { *(.stab.index) }
.stab.indexstr 0 : { *(.stab.indexstr) }
.comment 0 : { *(.comment) }
.debug_abbrev 0 : { *(.debug_abbrev) }
.debug_info 0 : { *(.debug_info) }
.debug_line 0 : { *(.debug_line) }
.debug_pubnames 0 : { *(.debug_pubnames) }
.debug_aranges 0 : { *(.debug_aranges) }
}
@@ -0,0 +1,163 @@
/****************************************************************************
* boards/arm64/imx9/imx93-evk/scripts/kernel.ld
*
* SPDX-License-Identifier: Apache-2.0
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership. The
* ASF licenses this file to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance with the
* License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*
****************************************************************************/
OUTPUT_ARCH(aarch64)
ENTRY(__start)
EXTERN(__start)
/* Memory is organized as follows:
* - Uboot reserved area is 0x00000000 - 0x00a00000
* - NuttX is loaded to 0x80200000, u-boot expects us here, see:
- https://github.com/nxp-imx/uboot-imx
/configs/imx93_11x11_evk_defconfig#CONFIG_TEXT_BASE
- https://www.nxp.com/docs/en/user-guide/IMX_LINUX_USERS_GUIDE.pdf
* - NuttX ROM and RAM are one continuous region, starting from 0x80000000
with a size of 128MB
* - Heap memory is allocated from dram end to idlestack top
*/
MEMORY
{
dram (rwx) : ORIGIN = 0x80200000, LENGTH = 30720K
pgram (rwx) : ORIGIN = 0x82000000, LENGTH = 96M
}
PHDRS
{
/* R = 100, W = 010, X = 001 */
text PT_LOAD FLAGS(5); /* RX */
rodata PT_LOAD FLAGS(4); /* R */
data PT_LOAD FLAGS(6); /* RW */
}
SECTIONS
{
.text :
{
_stext = ABSOLUTE(.); /* Text section */
*(.start .start.*) /* Place __start here */
*(.text .text.*)
*(.text.cold)
*(.text.unlikely)
*(.fixup)
*(.gnu.warning)
} > dram :text
.init_section :
{
_sinit = ABSOLUTE(.);
KEEP(*(SORT_BY_INIT_PRIORITY(.init_array.*) SORT_BY_INIT_PRIORITY(.ctors.*)))
KEEP(*(.init_array .ctors))
_einit = ABSOLUTE(.);
} > dram :text
/* Vector table must be page aligned */
.vector : ALIGN(4096)
{
_vector_start = ABSOLUTE(.);
KEEP(*(.exc_vector_table))
KEEP(*(".exc_vector_table.*"))
KEEP(*(.vectors))
_vector_end = ABSOLUTE(.);
} > dram :text
/* End of text data must be aligned to page boundary */
. = ALIGN(4096);
_etext = .;
_sztext = _etext - _stext;
/* Start of RO data must be page aligned (mapped as read only) */
.rodata : ALIGN(4096)
{
_srodata = ABSOLUTE(.); /* Read-only data */
*(.rodata .rodata.*)
*(.data.rel.ro)
*(.data.rel.ro.*)
} > dram :rodata
/* End of RO data must be page aligned */
. = ALIGN(4096);
_erodata = .; /* End of read-only data */
_szrodata = _erodata - _srodata;
_eronly = .; /* End of read-only data */
.data : ALIGN(4096)
{
_sdata = ABSOLUTE(.);
*(.data.page_aligned)
*(.data .data.*)
. = ALIGN(8);
*(.data.rel)
*(.data.rel.*)
CONSTRUCTORS
. = ALIGN(8);
_edata = ABSOLUTE(.);
} > dram :data
.bss :
{
. = ALIGN(8);
_sbss = ABSOLUTE(.);
*(.bss .bss.*)
. = ALIGN(8);
_ebss = ABSOLUTE(.);
} > dram :data
_szbss = _ebss - _sbss;
.initstack :
{
_s_initstack = ABSOLUTE(.);
*(.initstack)
} > dram :data
/* End of data must be page aligned */
. = ALIGN(4096);
g_idle_topstack = .;
_e_initstack = .;
_szdata = _e_initstack - _sdata;
/* Sections to be discarded */
/DISCARD/ : {
*(.exit.text)
*(.exit.data)
*(.exitcall.exit)
*(.eh_frame)
}
/* Stabs debugging sections. */
.stab 0 : { *(.stab) }
.stabstr 0 : { *(.stabstr) }
.stab.excl 0 : { *(.stab.excl) }
.stab.exclstr 0 : { *(.stab.exclstr) }
.stab.index 0 : { *(.stab.index) }
.stab.indexstr 0 : { *(.stab.indexstr) }
.comment 0 : { *(.comment) }
}
@@ -35,6 +35,18 @@
#include "imx93-evk.h"
#ifdef CONFIG_IMX9_BIN_ROMFS
#include <nuttx/drivers/ramdisk.h>
#include <arch/board/bin_romfsimg.h>
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
#define SECTORSIZE 512
#define NSECTORS(b) (((b) + SECTORSIZE - 1) / SECTORSIZE)
#endif /* CONFIG_IMX9_BIN_ROMFS */
/****************************************************************************
* Public Functions
****************************************************************************/
@@ -61,6 +73,17 @@ int imx9_bringup(void)
}
#endif
#ifdef CONFIG_IMX9_BIN_ROMFS
/* Create a ROM disk for the /bin filesystem */
ret = romdisk_register(0, romfs_img, NSECTORS(romfs_img_len), SECTORSIZE);
if (ret < 0)
{
syslog(LOG_ERR, "Failed to register ROMFS at /dev/ram0: %d\n", ret);
}
#endif
#ifdef CONFIG_IMX9_DMA_ALLOC
/* Initialize the DMA memory allocator */